EP2819206B1 - Elektrischer Akkumulator - Google Patents

Elektrischer Akkumulator Download PDF

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Publication number
EP2819206B1
EP2819206B1 EP13174030.0A EP13174030A EP2819206B1 EP 2819206 B1 EP2819206 B1 EP 2819206B1 EP 13174030 A EP13174030 A EP 13174030A EP 2819206 B1 EP2819206 B1 EP 2819206B1
Authority
EP
European Patent Office
Prior art keywords
box
shaped body
cover
rubber
lower shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP13174030.0A
Other languages
English (en)
French (fr)
Other versions
EP2819206A1 (de
Inventor
Enrico Paci
Micheal Reginald Charles Ambler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DOMETIC ITALY Srl
Dometic Italy SRL
Original Assignee
DOMETIC ITALY Srl
Dometic Italy SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DOMETIC ITALY Srl, Dometic Italy SRL filed Critical DOMETIC ITALY Srl
Priority to EP13174030.0A priority Critical patent/EP2819206B1/de
Publication of EP2819206A1 publication Critical patent/EP2819206A1/de
Application granted granted Critical
Publication of EP2819206B1 publication Critical patent/EP2819206B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6562—Gases with free flow by convection only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/256—Carrying devices, e.g. belts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This invention relates to an electrical accumulator, commonly known as "battery”, used in particular for vehicles such as camper vans, caravans or the like.
  • the electrical accumulator according to this invention is of the type which can be used for supplying electricity to auxiliary systems, for example, cab lights, air conditioning system, hot plates etc.
  • auxiliary systems for example, cab lights, air conditioning system, hot plates etc.
  • Ep1717882 discloses a polymer battery pack comprising a bare cell, a protection circuit member electrically connected with said bare cell and resin sheath.
  • the electrical accumulators comprising a box-shaped body forming the actual energy storage unit (for example a lead-acid unit), associated with a corresponding control electronics and covered externally with a shell made from rigid plastic.
  • the rigid plastic shell comprises a plurality of panels or elements assembled together to cover the box-shaped body.
  • the electrical accumulators of the above-mentioned type e.g. those of US2012/074617A1 and DE202010017675 , have a number of drawbacks. More specifically, they are very susceptible to damage (in particular to the electronic components) following impacts or vibrations, as the plastic shell is not very suitable for absorbing vibrations and impacts.
  • the aim of this invention is to provide an electrical accumulator that overcomes the above mentioned drawbacks of the prior art.
  • the aim of this invention is to provide an electrical accumulator which has marked resistance to vibrations and impacts.
  • Another aim of this invention is to provide an electrical accumulator which has a high flexibility of use, in particular which can be installed without the need to provide specific attachment flanges or the like.
  • Yet another aim of this invention is to provide an electrical accumulator which has excellent resistance to adverse weather conditions or corrosive agents.
  • the aim is fully achieved by the electrical accumulator according to this invention, as characterised in the appended claims.
  • the present invention is an electrical accumulator according to claim 1 and a process according to claim 8 for making an accumulator according to claim 1.
  • the preferred embodiments are defined in the dependent claims.
  • This invention also relates to a method for making the electrical accumulator.
  • the electrical accumulator comprises an outer cover body designed to protect and inner box-shaped body (forming an energy storage unit).
  • the outer cover body is made (entirely, or substantially entirely) of an elastically deformable material, preferably rubber.
  • the outer cover made of rubber forms a matrix encapsulating at least a portion of the box-shaped body.
  • the invention relates to an electrical accumulator for camper vans (or caravans or other similar vehicles) having a box-shaped body (for protecting the actual batteries) embedded in a elastomeric matrix (that is, a rubber matrix).
  • the outer cover is made by injection moulding; in particular, the outer cover is made by injection moulding by injecting rubber (or another elastomeric material) into a mould in a liquid form, for then being solidified about at least a portion of the outer surface of the box-shaped body.
  • the rubber is a polyurethane mix; preferably, the rubber comprises a mix of isocyanate and polyol.
  • the rubber is obtained by mixing the materials in the liquid phase, and this is followed by solidifying the liquid mix, to form a soft material.
  • the rubber is soft; preferably, it is a polyurethane rubber.
  • reinforcement elements such as, for example, filaments or plates, made from material having a mechanical strength greater than the rubber, for example made of metal.
  • the cover in a relative undeformed configuration, is shaped to match and adheres to at least a part of the outer profile of the box-shaped body.
  • the box-shaped body is formed by a plurality of batteries placed side by side to form a battery pack and the cover covers entirely at least the outer corners of the battery pack.
  • the batteries are shaped in such a way as to form, between them, a plurality of longitudinal conduits which extend vertically for the entire height of the battery pack for forming respective paths for the passage of cooling air.
  • the box-shaped body is formed by a single battery, for example of the lead-acid type, and the cover covers entirely at least the outer corners of the battery.
  • the cover preferably covers the battery pack already formed by the side by side positioning of the batteries.
  • the cover covers each battery of the battery pack independently from one another.
  • the box-shaped body has a lower supporting surface, a lateral surface and an upper surface, and the cover comprises:
  • the lower shell comprises a single block made from rubber; if necessary, provided with the above-mentioned reinforcing elements embedded in the rubber.
  • the cover also comprises a single block made from rubber.
  • the cover has at least one stretch with a linear extension having reduced thickness, preferably between 5 mm and 25 mm, positioned between two mutually adjacent portions of the cover.
  • the stretch with reduced thickness preferably comprising a rectilinear groove made on a surface of the cover facing towards the inside of the lower shell and therefore towards the battery pack, forms a planned line of weakness designed to constitute a line for hinging the first portion of the cover (forming a reclosable door) with respect to the second portion of the cover.
  • the lower shell has a bottom wall having a bottom through opening facing the above-mentioned conduits enclosed between the batteries.
  • the bottom wall of the lower shell preferably has at least one horizontal groove extending between the bottom opening and a lateral surface of the lower shell.
  • the lower shell also has, on lateral surfaces facing each other, a pair of lateral handles made in one piece with the lateral surfaces, therefore also made of rubber, using the same injection process as the cover.
  • the method for making the accumulator according to this invention comprises a step for inserting the box-shaped (irrespective of the specific embodiment of the box-shaped body) in a mould and subsequent step of injecting rubber in the liquid state in the mould and in contact with the box-shaped body in such a way that the rubber coats at least partly the box-shaped body.
  • the step of injecting rubber is performed in such a way that the rubber coats at least a part of a bottom surface and an entire lateral surface of the box-shaped body, leaving at least party free an upper surface of the box-shaped body, so as to form the lower shell of the cover.
  • the rubber does not cover entirely the bottom surface of the box-shaped body but leaves a part free, preferably a predominant part, for forming the above-mentioned bottom opening.
  • the cover is made by a further injection step different from the step for injecting the lower shell and it is achieved by preparing an auxiliary mould different from the mould used in the step of injecting the lower shell, also in this case injecting rubber in the liquid state in the auxiliary mould.
  • the accumulator 1 as shown in the exploded view of Figure 1 , basically comprises a box-shaped body 2, forming the unit for storing electricity (for example, a lead-acid type unit) and an outer cover 3 applied outside the box-shaped body 2.
  • electricity for example, a lead-acid type unit
  • the box-shaped body 2 can be of the conventional type, more specifically having a box-shaped structure made from rigid plastic equipped with a suitable electronic control (comprising one or more electronic cards and relative connections, partly visible in Figure 1 and identified with "E") and suitable electrodes and electrical connections for the connection, respectively, to a network to be powered and a control circuit.
  • a suitable electronic control comprising one or more electronic cards and relative connections, partly visible in Figure 1 and identified with "E”
  • suitable electrodes and electrical connections for the connection, respectively, to a network to be powered and a control circuit.
  • the box-shaped body 2 comprises a plurality of batteries “B” (in the specific case, four batteries) positioned side by side to form a battery pack.
  • the batteries "B” have the same height and are placed side by side with each other.
  • the battery pack 2 (or, more generally, the box-shaped body 2) has overall a substantially prismatic shape having a rectangular base and a lower supporting surface 2a, a lateral surface 2b (comprising four flat panels) and an upper surface 2c.
  • the cover 3 covers entirely at least the lateral surface 2b and the upper surface 2c of the battery pack 2.
  • the cover 3 does not cover entirely the lower surface 2a of the battery pack 2 but forms a bottom opening 4 the purpose of which is described in detail below.
  • the bottom opening 4 has a surface extension corresponding to a main part of the of the lower surface 2a of the battery pack 2.
  • the cover 3 comprises a lower shell 3a which covers entirely at least the outer corners of the lower surface 2a and of the lateral surface 2b of the battery pack 2, leaving at least partially free (preferably entirely) the upper surface 2c of the battery pack 2, and an upper cover 3b for closing the lower shell 3a.
  • the lower shell 3a forms a container designed to contain the battery pack 2 and inside forms a compartment 5 (open below with the above-mentioned bottom opening 4) preferably having a height such as to contain entirely the battery pack 2.
  • the lower shell 3a covers entirely at least the outer corners of the lower surface 2a and of the lateral surface 2b of the box-shaped body 2, leaving at least partially free the upper surface 2c of the box-shaped body 2.
  • the cover 3 covers entirely the lateral surface 2b of the battery pack 2 (but not the lower surface 2a as mentioned above).
  • the lower shell 3a also has a pair of lateral handles 8 for a stable gripping by a user.
  • the lower shell 3a has on the outside, on the relative bottom surface, one of more grooves 6 (three grooves in the embodiment shown) extending between the bottom opening 4 and a lateral surface of the battery pack 2.
  • the grooves 6 form respective channels for the passage of air putting in communication the bottom opening 4 with the outside environment when the accumulator 1 is located on a supporting surface.
  • the batteries “B” are shaped in such a way as to form, between them, a plurality of conduits 7 extending between the lower surface 2A and the upper surface 2c of the battery pack 2 for allowing a vertical flow of cooling air.
  • the conduits 7 are therefore in fluid communication with the bottom opening 4 and, consequently, with the grooves 6.
  • the cover 3b is formed by a panel positioned for closing the lower shell 3a.
  • the cover 3b therefore has a shape substantially corresponding with the transversal cross section of the lower shell 3a.
  • the cover 3b has a door 11 hinged along a hinge line and positioned for closing the terminal strip "M" of the accumulator.
  • the terminal strip “M” comprises a pair of terminals (only partially illustrated in the drawings) connected, in a way that is not illustrated, to the poles of the batteries "B".
  • the cover 3 is made from an elastically deformable material, preferably rubber.
  • the rubber is selected from the group comprising a polyurethane mix, more preferably a polyurethane mix of isocyanate and polyol.
  • the cover 3 is shaped to match and adheres to at least a part of the outer profile of the battery pack 2 (in particular, as described above, at least to the entire lateral surface 2b of the battery pack 2 and to the lateral corners of the lower surface 2a of the battery pack).
  • the lower shell 3a comprises a single block made from rubber.
  • the box-shaped body 2 (which encloses the battery pack) has two brackets fixed to relative lateral surfaces; the brackets have a portion which protrudes outwardly, to form a core for supporting the lateral handles 8 of the lower shell 3a.
  • the lateral handles 8 of the lower shell 3a surround (and encapsulate) the brackets protruding laterally.
  • the cover 3b also comprises a single block made from rubber.
  • the cover 3b has at least one stretch 9 with a linear extension having reduced thickness, preferably between 5 and 30 mm, forming the above-mentioned hinge line.
  • the stretch 9 with reduced thickness is positioned between two portions mutually adjacent to the cover 3b, in particular a fixed portion 10 and the door 11 for defining the hinging of the door 11 and the rotation of the door between the open and closed limit positions.
  • the cover has two valves (fixed portion 10 and door 11); the valves are made from a single mould, that is, in a single cast and are joined by a thinned portion (the stretch 9).
  • this allows the electronic card E to be inserted (inserting it in an opening formed by moving the door 11).
  • the two valves of the cover 3b are closed (“sandwiched") and glued (or, in any case, fixed) to each other.
  • the shell 3 forms a window, having the purpose of uncovering electrical contacts for the battery or for the electronics (the window is preferably made on one of the two valves of the cover 3b).
  • the cover 3b also has one or more (pairs of) openings 12 (in the embodiment shown there are four pairs of openings 12, each associated with a respective battery "B").
  • openings 12 are to fix the cover 3b to the lower shell 3a using screws and/or to fix the cover 3b to other elements or units outside the shell 3a and rested on the cover 3b.
  • the openings 12 are through openings and form at the base a narrowing, so as to define an abutment on which the heads of the screws screwed to fasten the cover 3b to the shell 3a are operatively abutted.
  • the cover 3 can be obtained by a process of injecting liquid rubber into a mould.
  • the lower shell 3a and the cover 3b are made in two distinct steps using two different moulds.
  • the lower shell 3a is preferably made by injecting directly on the box-shaped body 2, or battery pack.
  • the handles 8 are also made as a single piece together with the rest of the lower shell 3a, and they are also therefore made of rubber.
  • control electronics are also embedded in the rubber, and in particular in the cover 3b (by the injection process).
  • the process for making the accumulator 1 comprises the following steps:
  • the injection occurs until fully covering the lateral surface 2b of the box-shaped body 2 and the lateral corners of the lower surface 2a of the box-shaped body 2.
  • the bottom opening 4 can be advantageously achieved by a suitable projection of the mould, or an external support, which supports the box-shaped body 2 during the injection.
  • the drawings show a mould 100 for making the lower shell 3a of the cover 3.
  • the mould 100 comprises a base plate 101, designed to face the upper surface 2c of the box-shaped body 2, as well as a first pair of lateral plates 102 which are opposite to each other and a second pair of lateral plates 103 which are also opposite to each other.
  • One of the two pairs of lateral plates 102 forms the above-mentioned handles 8.
  • the pair of lateral plates 102 forming the handles 8 is uncoupled from the base plate 101 and can be stably connected to it using threaded elements.
  • the lateral plates of the other pair 103 are coupled to the base plate 101, for example by hinging about respective axes.
  • the mould 100 also comprises one or more auxiliary plates 104 having respective protrusions 104a designed to enter into contact with the lower surface 2a of the box-shaped body 2.
  • the protrusions 104a have an overall size corresponding to the above-mentioned bottom opening 4 in such a way that, after injection, the removal of the auxiliary plates 104 makes the bottom opening 4.
  • This invention achieves the preset aims.
  • the integral and single-block cover, using rubber, of the lateral surfaces of the box-shaped body allows an efficient screen to be made against adverse weather conditions and/or corrosive substances.
  • the use of the rubber also improves in a significant fashion the adherence of the accumulator on any supporting surface, making the positioning more stable and eliminating the need for specific attachment or fitting elements.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Claims (9)

  1. Elektrischer Akkumulator, umfassend:
    - einen kastenförmigen Körper (2), bildend eine Einheit zum Speichern von Elektrizität und aufweisend eine untere Halteoberfläche (2a), eine seitliche Oberfläche (2b) und eine obere Oberfläche (2c);
    - eine außenseitige Abdeckung (3), bestehend aus Kautschuk und stabil angebracht am kastenförmigen Körper (2), um diesen zu umgeben,
    wobei die außenseitige Abdeckung (3) eine Kautschukmatrix bildet, die mindestens einen Abschnitt des kastenförmigen Körpers (2) einkapselt, wobei die außenseitige Abdeckung (3) direkt rund um den kastenförmigen Körper (2) geformt ist, wobei der kastenförmige Körper (2) in die Kautschukmatrix eingebettet ist, wobei der kastenförmige Körper (2) durch eine Vielzahl an Batterien (B) gebildet ist, die aneinandergereiht platziert sind, um ein Batteriepaket (2) zu bilden, und wobei die Abdeckung (3) in vollem Umfang mindestens die außenseitigen Ecken des Batteriepakets (2) bedeckt, dadurch gekennzeichnet, dass die außenseitige Abdeckung (3) umfasst:
    - eine untere Schale (3a), die in vollem Umfang mindestens die außenseitigen Ecken der unteren Oberfläche (2a) und der seitlichen Oberfläche (2b) des kastenförmigen Körpers (2) bedeckt, wobei die obere Oberfläche (2c) des kastenförmigen Körpers (2) mindestens teilweise frei gelassen wird, und
    - eine obere Abdeckung (3b) zum Verschließen, die stabil mit der unteren Schale (3a) gekuppelt werden kann,
    wobei die obere Abdeckung (3b) einen einzelnen Block umfasst, der aus Kautschuk besteht und mindestens ein Teilstück (9) mit einer linearen Ausdehnung mit reduzierter Dicke aufweist, positioniert zwischen zwei aneinander angrenzenden Abschnitten (10, 11) der außenseitigen Abdeckung (3b), wobei das Teilstück (9) mit reduzierter Dicke eine geplante Schwächungslinie bildet, die ausgestaltet ist, um eine Linie zum gelenkigen Anbringen des zweiten Abschnitts (11) der Abdeckung am ersten Abschnitt (10) der Abdeckung darzustellen.
  2. Akkumulator nach Anspruch 1, wobei die Abdeckung (3) passend zu mindestens einem Teil des äußeren Profils des kastenförmigen Körpers (2) und um an diesem anzuhaften ausgebildet ist.
  3. Akkumulator nach Anspruch 1 oder 2, wobei die untere Schale (3a) ein monolithisches Stück aus Kautschuk umfasst, und/oder die obere Abdeckung (3b) ein monolithisches Stück aus Kautschuk umfasst.
  4. Akkumulator nach einem der vorhergehenden Ansprüche, wobei der Kautschuk eine Polyurethanmischung aus Isocyanat und Polyol umfasst.
  5. Akkumulator nach einem der vorhergehenden Ansprüche, wobei der kastenförmige Körper (2) durch eine Vielzahl an Batterien (B) gebildet ist, die aneinandergereiht platziert sind, um ein Batteriepaket (2) zu bilden, und wobei die Abdeckung (3) in vollem Umfang mindestens die außenseitigen Ecken des Batteriepakets (2) bedeckt.
  6. Akkumulator nach Anspruch 5, wobei die Batterien (B) ausgeformt sind, um zwischen ihnen eine Vielzahl an Leitungen (7) zu bilden, die sich zwischen der unteren Oberfläche (2a) und der oberen Oberfläche (2c) des Batteriepakets (2) für das Durchströmen von Kühlluft zu erstrecken.
  7. Akkumulator nach Anspruch 6, wobei die Abdeckung (3) umfasst:
    - eine untere Schale (3a), die in vollem Umfang mindestens die außenseitigen Ecken der unteren Oberfläche (2a) und der seitlichen Oberfläche (2b) des kastenförmigen Körpers (2) bedeckt, wobei die obere Oberfläche (2c) des kastenförmigen Körpers (2) mindestens teilweise frei gelassen wird, und
    - eine obere Abdeckung (3b) zum Verschließen, die stabil mit der unteren Schale (3a) gekuppelt werden kann,
    und wobei die untere Schale (3a) eine Bodenwand aufweist, die eine Bodenöffnung (4) aufweist, die durch die Bodenwand führt und den Leitungen (7) zugewandt ist, wobei die Bodenwand auch mindestens eine Nut (6) aufweist, die sich zwischen der Bodenöffnung (4) und einer seitlichen Oberfläche der unteren Schale (3a) erstreckt.
  8. Verfahren zur Herstellung eines Akkumulators nach einem der vorhergehenden Ansprüche, umfassend die folgenden Schritte:
    - Vorbereiten eines kastenförmigen Körpers (2), bildend eine Einheit zum Speichern von Elektrizität;
    - Vorbereiten einer Form (100);
    - Einfügen des kastenförmigen Körpers (2) in die Form (100) ;
    - Einspritzen von Kautschuk im flüssigen Zustand in die Form (100) und in Kontakt mit dem kastenförmigen Körper (2), sodass der Kautschuk mindestens teilweise den kastenförmigen Körper (2) beschichtet, um eine außenseitige Abdeckung (3) zu bilden, die direkt rund um den kastenförmigen Körper (2) geformt ist,
    dadurch gekennzeichnet, dass es einen Schritt zum Herstellen einer oberen Abdeckung (3b) umfasst, um die obere Oberfläche (2c) des kastenförmigen Körpers (2) zu bedecken, wobei der Schritt zum Herstellen der Abdeckung (3b) durchgeführt wird, indem eine Hilfsform vorbereitet wird, die sich von der Form (100) unterscheidet, die beim vorherigen Schritt zum Einspritzen genutzt wurde, und indem anschließend Kautschuk im flüssigen Zustand in die Hilfsform eingespritzt wird, um die obere Abdeckung (3b) bereitzustellen, die einen einzelnen Block umfasst, der aus Kautschuk besteht und mindestens ein Teilstück (9) mit einer linearen Ausdehnung mit reduzierter Dicke aufweist, positioniert zwischen zwei aneinander angrenzenden Abschnitten (10, 11) der außenseitigen Abdeckung (3b), wobei das Teilstück (9) mit reduzierter Dicke eine geplante Schwächungslinie bildet, die ausgestaltet ist, um eine Linie zum gelenkigen Anbringen des zweiten Abschnitts (11) der Abdeckung am ersten Abschnitt (10) der Abdeckung darzustellen.
  9. Verfahren nach Anspruch 8, wobei der Schritt zum Einspritzen des Kautschuks so durchgeführt wird, dass der Kautschuk mindestens einen Teil der Bodenoberfläche (2a) und eine vollständige seitliche Oberfläche (2b) des kastenförmigen Körpers (2) bedeckt, wobei eine obere Oberfläche (2c) des kastenförmigen Körpers (2) mindestens teilweise frei gelassen wird.
EP13174030.0A 2013-06-27 2013-06-27 Elektrischer Akkumulator Not-in-force EP2819206B1 (de)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1717882A1 (de) * 2005-04-26 2006-11-02 Samsung SDI Co., Ltd. Polymerbatteriepack und Verfahren zu dessen Herstellung

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Publication number Priority date Publication date Assignee Title
CA2350982A1 (en) * 2000-06-19 2001-12-19 C & D Technologies, Inc. Molded modular lead-acid battery system
US6593027B1 (en) * 2000-07-27 2003-07-15 Eaton Corporation Combination battery cover, heat shield and hold down
CN2629231Y (zh) * 2003-05-27 2004-07-28 王铁忠 电动车电瓶保温装置
DE102010037656A1 (de) * 2010-09-20 2012-03-22 Bmz Batterien-Montage-Zentrum Gmbh Batterieanordnung
DE102010041387A1 (de) * 2010-09-24 2012-03-29 Bayer Materialscience Aktiengesellschaft Flammgeschützte schlagzähmodifizierte Batteriegehäuse auf Polycarbonatbasis I

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP1717882A1 (de) * 2005-04-26 2006-11-02 Samsung SDI Co., Ltd. Polymerbatteriepack und Verfahren zu dessen Herstellung

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